Hey there! :)
Answer:
y = x - 3.
Step-by-step explanation:
Given:
Slope = 1
Point on line: (8, 5)
Plug these into the formula y = mx + b, where:
m = slope
x = x coordinate of point
y = y coordinate of point
5 = 1(8) + b
5 = 8 + b
Subtract both sides by 8:
5 - 8 = 8 -8 + b
-3 = b
Rewrite the equation:
y = x - 3.
The answer is D. The action taken between each number is multiplying by 3. With this question, I'd say an easy way to answer it is to look at each answer given (in this case 36 and 108) and see if it fits the sequence with the given values (12 and 324).
2x-4y=56
-4/-4 56/-4
=2x-y=-14
2/2 -14/2
X-y= -7
12.4%x = 7.13
Simplify both sides of the equation.
0.124x=7.13
Divide both sides by 0.124.
0.124x / 0.124 = 7.13 / 0.124
x=57.5
